Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Portuguese trinta
Proto-Indo-European *tri(d)ḱomt (inherited)
Latin trīgintā (inherited)
Old Portuguese trinta (inherited)
Old Portuguese treinta (mention)
Old Portuguese triinta (mention)

Kabuverdianu trinta (derived)
Papiamentu trinta (derived)